ROOT::Experimental::REntry Class Reference

The REntry is a collection of values in an ntuple corresponding to a complete row in the data set.

The entry provides a memory-managed binder for a set of values. Through shared pointers, the memory locations that are associated to values are managed.

Definition at line 42 of file REntry.hxx.

Public Types
using	Iterator_t = decltype(fValues)::iterator

Public Member Functions
	REntry (const REntry &other)=delete
	REntry (REntry &&other)=default
	~REntry ()=default
Iterator_t	begin ()
void	CaptureValueUnsafe (std::string_view fieldName, void *where)
Iterator_t	end ()
template<typename T >
T *	Get (std::string_view fieldName) const
std::uint64_t	GetModelId () const
void *	GetRawPtr (std::string_view fieldName) const
REntry &	operator= (const REntry &other)=delete
REntry &	operator= (REntry &&other)=default

Private Member Functions
	REntry ()=default
	REntry (std::uint64_t modelId)
void	AddValue (Detail::RFieldBase::RValue &&value)
template<typename T , typename... ArgsT>
std::shared_ptr< T >	AddValue (RField< T > *field, ArgsT &&... args)
	While building the entry, adds a new value to the list and return the value's shared pointer.

Private Attributes
std::uint64_t	fModelId = 0
	The entry must be linked to a specific model (or one if its clones), identified by a model ID.
std::vector< std::shared_ptr< void > >	fValuePtrs
	The objects involed in serialization and deserialization might be used long after the entry is gone: hence the shared pointer.
std::vector< Detail::RFieldBase::RValue >	fValues
	Corresponds to the top-level fields of the linked model.

Friends
class	RNTupleModel

#include <ROOT/REntry.hxx>

Member Typedef Documentation

Iterator_t

using ROOT::Experimental::REntry::Iterator_t = decltype(fValues)::iterator

Definition at line 70 of file REntry.hxx.

Constructor & Destructor Documentation

REntry() [1/4]

ROOT::Experimental::REntry::REntry ( )

privatedefault

REntry() [2/4]

ROOT::Experimental::REntry::REntry ( std::uint64_t  modelId )

inlineexplicitprivate

Definition at line 56 of file REntry.hxx.

REntry() [3/4]

ROOT::Experimental::REntry::REntry ( const REntry &  other )

delete

REntry() [4/4]

ROOT::Experimental::REntry::REntry ( REntry &&  other )

default

~REntry()

ROOT::Experimental::REntry::~REntry ( )

default

Member Function Documentation

AddValue() [1/2]

void ROOT::Experimental::REntry::AddValue ( Detail::RFieldBase::RValue &&  value )

private

Definition at line 21 of file REntry.cxx.

AddValue() [2/2]

template<typename T , typename... ArgsT>

std::shared_ptr< T > ROOT::Experimental::REntry::AddValue ( RField< T > *  field, ArgsT &&...  args  )

inlineprivate

While building the entry, adds a new value to the list and return the value's shared pointer.

Definition at line 62 of file REntry.hxx.

begin()

Iterator_t ROOT::Experimental::REntry::begin ( )

inline

Definition at line 104 of file REntry.hxx.

CaptureValueUnsafe()

void ROOT::Experimental::REntry::CaptureValueUnsafe	(	std::string_view	fieldName,
		void *	where
	)

Definition at line 26 of file REntry.cxx.

end()

Iterator_t ROOT::Experimental::REntry::end ( )

inline

Definition at line 105 of file REntry.hxx.

Get()

template<typename T >

T * ROOT::Experimental::REntry::Get ( std::string_view  fieldName ) const

inline

Definition at line 81 of file REntry.hxx.

GetModelId()

std::uint64_t ROOT::Experimental::REntry::GetModelId ( ) const

inline

Definition at line 102 of file REntry.hxx.

GetRawPtr()

void * ROOT::Experimental::REntry::GetRawPtr ( std::string_view  fieldName ) const

inline

Definition at line 92 of file REntry.hxx.

operator=() [1/2]

REntry & ROOT::Experimental::REntry::operator= ( const REntry &  other )

delete

operator=() [2/2]

REntry & ROOT::Experimental::REntry::operator= ( REntry &&  other )

default

Friends And Related Symbol Documentation

RNTupleModel

friend class RNTupleModel

friend

Definition at line 43 of file REntry.hxx.

Member Data Documentation

fModelId

std::uint64_t ROOT::Experimental::REntry::fModelId = 0

private

The entry must be linked to a specific model (or one if its clones), identified by a model ID.

Definition at line 46 of file REntry.hxx.

fValuePtrs

std::vector<std::shared_ptr<void> > ROOT::Experimental::REntry::fValuePtrs

private

The objects involed in serialization and deserialization might be used long after the entry is gone: hence the shared pointer.

Definition at line 51 of file REntry.hxx.

fValues

std::vector<Detail::RFieldBase::RValue> ROOT::Experimental::REntry::fValues

private

Corresponds to the top-level fields of the linked model.

Definition at line 48 of file REntry.hxx.

Libraries for ROOT::Experimental::REntry:

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The documentation for this class was generated from the following files:

• tree/ntuple/v7/inc/ROOT/REntry.hxx
• tree/ntuple/v7/src/REntry.cxx